The most recent official firmware version for the Huawei B311-221 10.0.1.1 (H187SP60C983)
Pro tip: to monitor community feedback. A Huawei B311221 firmware updated release that causes more issues than it solves is rare, but it happens. huawei b311221 firmware updated
Run speed tests (Ookla, Fast.com) before and after. Also check ping stability via command prompt: ping 8.8.8.8 -t . The most recent official firmware version for the
Document version 1.0 – Validated on B311-221 with firmware 11.0.2.13 huawei b311221 firmware updated